Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFV: Import atf-0.21.

Import atf-0.21:

Released on October 23rd, 2014.

* Restored the atf(7) manual page to serve as a reference to all the other
manual pages shipped by ATF.

* Added the -s flag to atf-sh to support specifying the shell interpreter
to be used.

* Removed ATF_WORKDIR. The only remaining consumers have been converted to
use the standard TMPDIR environment variable. As a benefit, and because
Kyua forces the TMPDIR to live within the test case's work directory,
any stale files left behind by ATF will be automatically cleaned up.

* Documented the environment variables recognized by each component in the
relevant manual pages. This information was lost with the atf-config(1)
removal.

* Added a new "require.diskspace" metadata property to test cases so that
they can specify the minimum amount of disk space required for the test
to run.

* Renamed the atf-{c,c++,sh}-api(3) manual pages to atf-{c,c++,sh}(3) for
discoverability purposes. Symbolic links are provided for the time
being to still make the old names visible.

* Issue #5: Recommend the (expected, actual) idiom for calls to the test
macros in the manual pages.

* Issue #7: Stopped catching unhandled exceptions in atf-c++ tests. This
propagates the crash to the caller, which in turn allows it to obtain
proper debugging information. In particular, Kyua should now be able to
extract a stacktrace pinpointing the problem.

* Issue #8: Fixed atf-c/macros_test:use test failures spotted by the clang
that ships with FreeBSD 11.0-CURRENT.

* Issue #12: Improved documentation of atf-sh(3) and atf-check(1) by better
explaining how they relate to each other.

* Issue #14: Stopped setting 'set -e' in atf-sh. This setting was
initially added as a way to enable a "strict" mode in the library and to
make test cases fail fast when they run unprotected commands. However,
doing so in the library is surprising as the responsibility of enabling
'set -e' should be on the user's code. Also, 'set -e' introduces
inconsistent behavior on subshells and users do not expect that.

* Issue #15: Fixed atf_utils_{fork,wait} to support nested calls.

* Issue #16: Fixed test failures (by removing a long-standing hack) on
systems that lack \e support in printf(1).

* Issue #19: Removed stale references to atf-config and atf-run.